Extended Data Fig. 6: Quantum oscillations in the 1.33°-device.

a, Magnetoresistance oscillations in perpendicular magnetic field B⊥ varied from 0T to 9T and at D/ε0=-0.4V/nm. b, Schematic of Landau levels observed in a. Dark blue lines, light blue lines and red lines track Landau levels fanning from CNP, Landau levels fanning from half filling and fractal Landau levels, respectively.